diff --git a/controllers/admin/AdminLoginController.php b/controllers/admin/AdminLoginController.php
index 059474751..13abf637f 100755
--- a/controllers/admin/AdminLoginController.php
+++ b/controllers/admin/AdminLoginController.php
@@ -71,7 +71,7 @@ class AdminLoginControllerCore extends AdminController
 		
 		
 		if(file_exists(_PS_ADMIN_DIR_.'/../install') || file_exists(_PS_ADMIN_DIR_.'/../admin')
-		|| file_exists(_PS_ADMIN_DIR_.'/../install-new') 
+		|| (file_exists(_PS_ADMIN_DIR_.'/../install-new') || (defined('_PS_MODE_DEV_') && _PS_MODE_DEV_)) 
 		)
 			$this->context->smarty->assign(
 				array(